Best Dark Sounding Amp For Bright Speakers?

I have recently heard the Kappa 200 monitors...and they didnt sound bright to me...I dont know how old yours are...
but the 200 is danish made...and struck me as being slightly laid back in character...as far as changing gear...there are 2 options...more tube power...or a more forgiving speaker...ala hi-end british SPendor,Castle,Proac,etc...I too find alot of speakers bright...but the Kappa 200 surprised me....

Rcrump, LOL :). On a more serious note, we still haven't identified the offender here: the speaker, the amp or the source? If Mfb33 could get back in the light of responses above...

My system is comprised of a VTL TL-2.5 preamp, Adcom GFA 5500 amp, Infinity Kappa 8.1 speakers, Yamaha CD transport, Audio Alchemy DDE1, Interconnects-Audioquest Diamondback,Monster M950. Speaker cable Straightwire"stage"
MFB33

Put cotton in it till it hz

An older Classe amp, will work well. Try a  15 or CA150 or 200. They are smooth and tube like without the tubes. Well, kind of.